Tile-coating machinery.



J. P. SGOVILL.

TILE COATING MACHINERY.

APPLIQATION FILED SEPT. 2a, 1904.

973,710. Patented 0t.25,1910.

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uNrrED STATES l,PATENT orrroa.

JAMES I. SCOVILL, OF WYOMING, OHIO, ASSIG-NOB, BY MESNE ASSIGNMENTS, TOTHE CERAMIC MACHINERY COMPANY, OF HAMILTON, OHIO.

TILE-COATING MACHINERY.

Specification of Letters Patent.

Application filed September 23, 1904. Serial No. 225,619.

To all'whom 'it may concern."

1 3e it known that I, JAMES P. SooviLL, a citizen of the United States,and a resident of Wyoming, in the county of Hamilton,

State of Ohio, have invented certain new and usefullmprovements in Tile-Coating Machinery, of which the following is a specification.

This invention relates to machines for coating tile and the like withthe liquid material which subsequently forms the glaze when the tile arefired.

The object of the invention is to provide an improved construction inmachines of the character referred to, and it consists of the matters.hereinafter'set forth and particularly pointed out in the appendedclaims.

In the accompanying drawings,-Figure l is a sectional elevation of atilecoating machine embodying my improvements in one form. Fig. 2 is asectional detail of the nozzle and spout for conducting the liquid tilecoating material to the tile.

In said drawings, l designates an up wardly projecting spout designed tobe supplied with liquid coating material under a pressure or headsufficient to keep the material flowing continuously from the mouth ofthe spout. The length of `this spout is transverse to the direction ofmovement of the tile, and will be longer than the widest tile which themachine is designed to handle, but the width of its mouth is quitesmall, just large enough to freely emit the tile coating material.covered with a cap 2of foraminous Inaterial, desirably formed of one ormore layers of wire screening, backed, if necessary, by a layer ofAvegetable liber.

The tile `T to be coated is placed with its coat receiving facedownward, and then moved across the mouth of the spout, either by handor by any suitable means, such as an endless carrier 3, the removal ofthe'tile being similarly accomplished by hand or by a suitablemechanism, such'as an endless carrier 4. In moving across the spout thetile rests upon the cap 2, and lts lower face The mouth of the spout isthe thickness of this layer can be varied by Varying the character ofthe foraminous cap or the size of its pores through which the coatingmaterial flows, or by alterations in the character of the coatingmaterial itself, also by Var in the flow through the spout which may hetgl ner, as `by adjusting a Valve 5 which controls the entrance ofmaterial to the spout.

` In the contem lation of my broad invention, so far as the tile coatingoperation is concerned, the liquid coating material can be fed into thespout by any means which will insure its being supplied in sulicientquantities and kept perfectly mixed, it being well known that tilecoatingmaterials contain much heavy matter which is normally held insuspension but tends to rapidly sink to the bottom unless constantlyagitated. In this instance, however, and as a further and importantfeature of the present improvement, the supply of freshly agitatedliquid material to the spout is maintained by a wheel or drum 6 from theupper portion of which a trough or chute 7 leads to the spout. Thistrough or chute is downwardly inclined from the top of the drum 6 sothat the liquid material scraped from the drum by the edge of the chuteflows downward to and'rises in the spout l, until it overows through thecap 2 by reason of the fact that the mouth of the spout is placed lowerthan the top of the drum, thus giving rise to a hydraulic headsuflicient to maintain the circulation through the spout. The surplusmaterial flowing out of the spout, and not absorbed by the tile, simplydrops back into the vat 8 within which the drum is'm'ounted, and iseventually raised again by the drum and fed through the chute. and boxas before. The bottom 9 of the vat is preferably inclined downwardlybelow the drum 7 to facilitate the return of the liquid to the drum, andthe circulation` serves to keep thev material owing out of the spout ina freshly agitated and perone in any convenient manfectly mixedcondition ready forvapplication such heavier matter to escape, suchholes being, however, too small to interfere with thc principal flow ofthe liquid out ot' the spout through its cap 2, as described.

I claim as my invention 1. In a tile coating machine, an upwardlyprojecting spout provided with a foraminous cap, means for continuouslyflowing liquid coating material through the spout only to an elevationsubstantially the saine as that of the lower face of the tile, and meansfor passing the tile over the mouth of the spout with its coat receivingface in close proximity thereto, substantially as described.

2. In a tile coating machine, an upwardly projecting spout, a foraminouscap thereon, means for continuously flowing liquid coating materialthrough the spout, and a supporting guide for the tile located at themouth of the spout and serving to direct the tile through the outlowingcurrent of coating material, substantially as described.

3. In a tile coating machine, an upwardly projecting spout, means forcontinuously tlowing the liquid coating material through the spout, anda foraminous cap upon the spout serving as a supporting guide for thetile, substantially as described.

4. In a tile coating machine, a vat for liquid coating material, a drumrotating in said vat, an upwardly projecting spout, a chute leading fromthe top of the drum downwardly into the spout to divert coating materialfrom the drum to the spout, and means for passing the tile over themouth of the spout with its coat receiving face in close proximitythereto, substantially as described.

5. In a tile coating machine, a vat for liquid coating material, a drumrotating in said vat, an upwardly projecting spout, a chute leading fromthe top of the drum downwardly into the spout to divert coating materialfrom the drum to the spout, and a` supporting guide for the tile locatedatthe mouthv of the spout and serving to direct thev tile through theoutflowing current of coating material, substantially as described.

6. In a tile coating machine, a vat for liquid coating material, a drumrotating in said vat, an upwardly projecting spout, a chute leadin fromthe top of the drum downwardly into the spout to divert coating materialfrom the drum to the spout, and a foraminous cap upon the spout `servingas a supporting guide for the tile, substantially as described.

7. In a tile coating machine, a vat for liquid coating material, a drumrotating in said Vat, an upwardly projecting spout, a chute Yleadingfrom' the top of the drum downwardly into the spout to divert coatingmaterial from the drum to the spout, and means for passing the tile overthe mouth of the spout with its coat receiving face in close proximitythereto, comprising a pair of inclined endless carriers, substantiallyas described.

8. In a tile coating machine, an upwardly projecting spout, means forcontinuously tiowing liquid coating material through the spout, aforaminous cap upon the spout serving as a supporting guide for thetile, and endless carriers for passing the tile over said spout and cap,substantially as described.

9. In a tile coating machine, a vat for liquid coating material, a drumrotating in said vat, an upwardly projecting spout, a chute leading fromthe top of the drum downwardly into the spout to divert coating materialfrom the drum to the spout, a foraminous cap upon the spout, andinclined carriers for passing the tile over the spout and cap,substantially as described.

l0. In a tile coating machine, a vat for liquid coating material, a drumrotating in said vat, an upwardly projecting spout, a chute leading fromthe top of the drum downwardly into the spout to divert coating materialfrom the drum to the spout, means Jfor passing the tile over the mouthof the s out in close proximity thereto, and means tor controlling theilow of liquid through the spout, substantially as described.

ll. In a tile coating machine, a vat for liquid coating material, a drumrotating in said vat, an upwardly projecting spout, a chute leading fromthe top of the drum downwardly into the spout to divert coating materialfrom the drum to the spout, means for passing the tile over the mouth ofthe spout in close proximity thereto, and limited outlet openings at thelower end of the spout for permitting the escape of settlings,substantially as described.

12. In a tile coating machine, a vat for liquid coating material, anupwardly projecting spout provided with a foraminous cap, a chuteleading from the top of said drum downwardly 'into the spout to diver-tcoating material from the drum to the spout, and means for passing thetile over the mouth of the spout in close proximity thereto, so thatcoating is deposited only upon the lower surface of the tile.

13. In coating mechanism, the combination of a coating spout inclined atan angle to the vertical, respectively, and lying-'in the path of theconveying mechanism and in clined conveying mechanism for passingobjects to be coated from the spout.

414:. In machines for coating, the combination of inclined conveyingmechanism a spout inclined at an angle to the vertical respectively, andlying-in the path of the conveying mechanism so that coat-ing materialissuing from it falls over the lower side and back into the receptacle,and means for circulating coating material from the receptacle to thespout and back.

15. In machines for coating, the combination of alreceptacle for coatingmaterial, a spout inclined at an angle to the vertical so that coatingmaterial issuing Jfrom it falls over the lower side and back into thereceptacle, an endless feed apron at one side of the spout, an endlessdelivery apron on the opposite side of the spout and means for supplyingcoating material to the spout.

16. In machines for coating, the combination of a receptacle for coatingmaterial, a spout inclined at an angle to the `vertical so that coatingmaterial issuing from it falls over the lower side and back into thereceptacle, a duct communicating `With the spout through a short bendand having an opening above the level of the spout, and means forsupplying coating material vfrom the receptacle to the spout throughsaid duct.

17. The combination of two inclined separated conveying beltsor'carrying objects to be coated,` and coating mechanism including aspout lying in a path common to both belts, and discharging between thebelts at an angle to the vertical.

In testimony, that I claim the foregoing as my invention, I affix mysignature in presence of tWo subscribing Witnesses, this 17th day ofSeptember, A. D. 1904.

J. P. SCOVILL.

Witnesses:

H. H. HATCH, H. D. HALE'r.

